[Lua] "Boomerang" Walking

[Icy]

Well I'm trying to make a spell, that when cast starts a 10-second timer. After the 10 seconds are up it'll teleport the user back to his/her original location.. but I'm having a few errors with my "custom" function..

--[[------------------
<<Script by Icy Mage>>
------------------]]--

local inDisplacement = 60000

local function teleportBack(cid, pos)
setPlayerStorageValue(cid, inDisplacement, 0)
doTeleportThing(cid, originalPosition)
doSendMagicEffect(getPlayerPosition(cid),17)
end

function onCastSpell(cid, var)

	if getPlayerStorageValue(cid, inDisplacement) < 9000 then
		originalPosition = getPlayerPosition(cid)
		setPlayerStorageValue(cid, inDisplacement, 9001)
		addEvent(teleportBack, 10000)
		doSendMagicEffect(getPlayerPosition(cid),17)
	else
		doPlayerSendTextMessage(cid,27,"You are already in temporal displacement!")
	end
	return TRUE
end

After the 10 seconds are up I get these 3 errors (relating to the `teleportBack` function not detecting the caster

[12/09/2009 01:56:19] Lua Script Error: [Spell Interface] 
[12/09/2009 01:56:19] in a timer event called from: 
[12/09/2009 01:56:19] data/spells/scripts/custom/temporal displacement.lua:onCastSpell

[12/09/2009 01:56:19] luaDoPlayerSetStorageValue(). Player not found

[12/09/2009 01:56:19] Lua Script Error: [Spell Interface] 
[12/09/2009 01:56:19] in a timer event called from: 
[12/09/2009 01:56:19] data/spells/scripts/custom/temporal displacement.lua:onCastSpell

[12/09/2009 01:56:19] luaDoTeleportThing(). Thing not found

[12/09/2009 01:56:19] Lua Script Error: [Spell Interface] 
[12/09/2009 01:56:19] in a timer event called from: 
[12/09/2009 01:56:19] data/spells/scripts/custom/temporal displacement.lua:onCastSpell

[12/09/2009 01:56:20] luaGetCreaturePosition(). Creature not found

[12/09/2009 01:56:20] Lua Script Error: [Spell Interface] 
[12/09/2009 01:56:20] in a timer event called from: 
[12/09/2009 01:56:20] data/spells/scripts/custom/temporal displacement.lua:onCastSpell

[12/09/2009 01:56:20] attempt to index a boolean value
[12/09/2009 01:56:20] stack traceback:
[12/09/2009 01:56:20] 	[C]: in function 'doSendMagicEffect'
[12/09/2009 01:56:20] 	data/spells/scripts/custom/temporal displacement.lua:6: in function <data/spells/scripts/custom/temporal displacement.lua:3>

Any suggestions on how I can fix the errors? :blink:

 

[Sync]

I beleive it may be because you put

local function teleportBack(cid, pos)

Your not soppose to have local infront of your function

 

[Darad]

This should do it

local inDisplacement = 60000

local function teleportBack(params)
	local cid = params.cid
	local pos = params.pos
	setPlayerStorageValue(cid, inDisplacement, 0)
	doTeleportThing(cid, originalPosition)
	doSendMagicEffect(getPlayerPosition(cid),17)
end

function onCastSpell(cid, var)

	if getPlayerStorageValue(cid, inDisplacement) < 9000 then
		originalPosition = getPlayerPosition(cid)
		setPlayerStorageValue(cid, inDisplacement, 9001)
		local params = {
			cid = cid,
			pos = originalPosition
		}
		addEvent(teleportBack, 10000)
		doSendMagicEffect(getPlayerPosition(cid),17)
	else
		doPlayerSendTextMessage(cid,27,"You are already in temporal displacement!")
	end
	return TRUE
end

 

[Zonet]

No, try removing local... and do function teleportBack()

 

[DarkstaR]

local inDisplacement = 60000

function teleportBack(params)
        local cid = params.cid
        local pos = params.pos
        setPlayerStorageValue(cid, inDisplacement, 0)
        doTeleportThing(cid, originalPosition)
        doSendMagicEffect(getPlayerPosition(cid),17)
end

function onCastSpell(cid, var)

        if getPlayerStorageValue(cid, inDisplacement) < 9000 then
                originalPosition = getPlayerPosition(cid)
                setPlayerStorageValue(cid, inDisplacement, 9001)
                local params = {
                        cid = cid,
                        pos = originalPosition
                }
                addEvent(teleportBack, 10000, params)
                doSendMagicEffect(getPlayerPosition(cid),17)
        else
                doPlayerSendTextMessage(cid,27,"You are already in temporal displacement!")
        end
        return TRUE
end

Havent done any LUA in a while, but I believe thats correct. You were passing the parameters to the function through AddEvent


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[chojrak]

Function teleportBack should be defined as local.

Also you can use:

function teleportBack(cid, pos)

addEvent(teleportBack, 10 * 1000, cid, orginalPosition)

And... i see problem here:

doTeleportThing(cid, originalPosition)

Should be:

doTeleportThing(cid, pos)

 

[Icy]

local inDisplacement = 60000

function teleportBack(params)
        local cid = params.cid
        local pos = params.pos
        setPlayerStorageValue(cid, inDisplacement, 0)
        doTeleportThing(cid, originalPosition)
        doSendMagicEffect(getPlayerPosition(cid),17)
end

function onCastSpell(cid, var)

        if getPlayerStorageValue(cid, inDisplacement) < 9000 then
                originalPosition = getPlayerPosition(cid)
                setPlayerStorageValue(cid, inDisplacement, 9001)
                local params = {
                        cid = cid,
                        pos = originalPosition
                }
                addEvent(teleportBack, 10000, params)
                doSendMagicEffect(getPlayerPosition(cid),17)
        else
                doPlayerSendTextMessage(cid,27,"You are already in temporal displacement!")
        end
        return TRUE
end

Havent done any LUA in a while, but I believe thats correct. You were passing the parameters to the function through AddEvent

Thank you so much =]

 

[Icy]

Uhmm, one problem - if a second person casts it while the first person is already in it, then the first person teleports to the second person's original spot when the time ends z.z